Answer: Some of the most heat-tolerant plants for full sunshine include ornamental grasses. Once established, ornamental grasses are among the most drought-tolerant and carefree plants on the planet. Once more, they're beautiful in almost any setting throughout much of the year. Daylilies are another sure thing. Because they bloom for months, you get a lot of bang for your buck. Despite its dainty appearance, coreopsis is tough as nails and can really take the heat. The same can be said for coneflower (Echinacea) and black-eyed Susan (Rudbeckia). A colorful trailing plant is lantana, which blooms all summer long and takes reflected heat.
You may find other "must have" plants in your local garden center.
Best wishes with your container garden!
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